Distributed utility-maximization using a resource pricing power control in uplink DS-CDMA

被引：8

作者：

Han, Sang-Wook ^{[1
]}

Kim, Hoon ^{[2
]}

Han, Youngnam ^{[1
]}

机构：

[1] Informat & Commun Univ, Sch Engn, Taejon, South Korea

[2] Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA

来源：

IEEE COMMUNICATIONS LETTERS | 2008年 / 12卷 / 04期

关键词：

distributed utility maximization; resource pricing; power control; DS-CDMA;

D O I：

10.1109/LCOMM.2008.080036

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 [电子科学与技术];

摘要：

This letter considers a distributed utility maximization power control scheme in uplink DS-CDMA systems. Maximizing a utility function is solved by Lagrangian dual decomposition, where the Lagrangian multiplier can be considered as a resource price charging to users. By adjusting the price in a distributed fashion, the proposed algorithm results in a bang-bang type power control, 'maximum power transmission' or 'shutdown'. Numerical result shows that the proposed algorithm achieves around 95% of the optimal utility maximization with a modest computational burden.

引用

页码：286 / 288

页数：3

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